You can do it with a two-step process. If that 2003 server has SP2 on it, you have access to the
icacls utility. With that you can run:
icacls f:\inetpub\wwwhome\* save f:\backups\rights-acls.txt /t /c
That will create a file with all of the rights stored in it, keep it with the zip. To restore
[unzip the file to the target]
icacls f:\inetpub\wwwhome\* restore f:\backups\rights-acls.txt
If you don't have icacls on the system, there isn't much help. Happily, icacls is included on WinVista and higher, so if you can access the data via a mapped drive, you can run it from the client-side and drop the file where you need it.